Capacity is simple arithmetic, and it saves surprises.
Key idea
Holds = stops × pictures per stop × items per picture. Needs = items ÷ (pictures per stop × items per picture), rounded up.
Worked example: Worked example
A palace with 20 stops, 2 pictures per stop, 2 digits per picture. How many digits does it hold?
- 20 × 2 × 2 = 80.
Answer: 80 digits.
Worked example: Stops needed
You need to memorize 100 digits with 2 digits per picture and 1 picture per stop. How many stops?
- 100 ÷ 2 = 50 pictures.
- 50 stops.
Answer: 50 stops.